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path: root/drivers/gpu/drm/nouveau/nv50_instmem.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_instmem.c')
-rw-r--r--drivers/gpu/drm/nouveau/nv50_instmem.c462
1 files changed, 0 insertions, 462 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_instmem.c b/drivers/gpu/drm/nouveau/nv50_instmem.c
deleted file mode 100644
index b773229b764..00000000000
--- a/drivers/gpu/drm/nouveau/nv50_instmem.c
+++ /dev/null
@@ -1,462 +0,0 @@
-/*
- * Copyright (C) 2007 Ben Skeggs.
- *
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial
- * portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- */
-
-#include "drmP.h"
-#include "drm.h"
-#include "nouveau_drv.h"
-
-struct nv50_instmem_priv {
- uint32_t save1700[5]; /* 0x1700->0x1710 */
-
- struct nouveau_gpuobj *pramin_pt;
- struct nouveau_gpuobj *pramin_bar;
- struct nouveau_gpuobj *fb_bar;
-};
-
-static void
-nv50_channel_del(struct nouveau_channel **pchan)
-{
- struct nouveau_channel *chan;
-
- chan = *pchan;
- *pchan = NULL;
- if (!chan)
- return;
-
- nouveau_gpuobj_ref(NULL, &chan->ramfc);
- nouveau_gpuobj_ref(NULL, &chan->vm_pd);
- if (chan->ramin_heap.free_stack.next)
- drm_mm_takedown(&chan->ramin_heap);
- nouveau_gpuobj_ref(NULL, &chan->ramin);
- kfree(chan);
-}
-
-static int
-nv50_channel_new(struct drm_device *dev, u32 size,
- struct nouveau_channel **pchan)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- u32 pgd = (dev_priv->chipset == 0x50) ? 0x1400 : 0x0200;
- u32 fc = (dev_priv->chipset == 0x50) ? 0x0000 : 0x4200;
- struct nouveau_channel *chan;
- int ret;
-
- chan = kzalloc(sizeof(*chan), GFP_KERNEL);
- if (!chan)
- return -ENOMEM;
- chan->dev = dev;
-
- ret = nouveau_gpuobj_new(dev, NULL, size, 0x1000, 0, &chan->ramin);
- if (ret) {
- nv50_channel_del(&chan);
- return ret;
- }
-
- ret = drm_mm_init(&chan->ramin_heap, 0x6000, chan->ramin->size);
- if (ret) {
- nv50_channel_del(&chan);
- return ret;
- }
-
- ret = nouveau_gpuobj_new_fake(dev, chan->ramin->pinst == ~0 ? ~0 :
- chan->ramin->pinst + pgd,
- chan->ramin->vinst + pgd,
- 0x4000, NVOBJ_FLAG_ZERO_ALLOC,
- &chan->vm_pd);
- if (ret) {
- nv50_channel_del(&chan);
- return ret;
- }
-
- ret = nouveau_gpuobj_new_fake(dev, chan->ramin->pinst == ~0 ? ~0 :
- chan->ramin->pinst + fc,
- chan->ramin->vinst + fc, 0x100,
- NVOBJ_FLAG_ZERO_ALLOC, &chan->ramfc);
- if (ret) {
- nv50_channel_del(&chan);
- return ret;
- }
-
- *pchan = chan;
- return 0;
-}
-
-int
-nv50_instmem_init(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nv50_instmem_priv *priv;
- struct nouveau_channel *chan;
- int ret, i;
- u32 tmp;
-
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
- dev_priv->engine.instmem.priv = priv;
-
- /* Save state, will restore at takedown. */
- for (i = 0x1700; i <= 0x1710; i += 4)
- priv->save1700[(i-0x1700)/4] = nv_rd32(dev, i);
-
- /* Global PRAMIN heap */
- ret = drm_mm_init(&dev_priv->ramin_heap, 0, dev_priv->ramin_size);
- if (ret) {
- NV_ERROR(dev, "Failed to init RAMIN heap\n");
- return -ENOMEM;
- }
-
- /* we need a channel to plug into the hw to control the BARs */
- ret = nv50_channel_new(dev, 128*1024, &dev_priv->fifos[0]);
- if (ret)
- return ret;
- chan = dev_priv->fifos[127] = dev_priv->fifos[0];
-
- /* allocate page table for PRAMIN BAR */
- ret = nouveau_gpuobj_new(dev, chan, (dev_priv->ramin_size >> 12) * 8,
- 0x1000, NVOBJ_FLAG_ZERO_ALLOC,
- &priv->pramin_pt);
- if (ret)
- return ret;
-
- nv_wo32(chan->vm_pd, 0x0000, priv->pramin_pt->vinst | 0x63);
- nv_wo32(chan->vm_pd, 0x0004, 0);
-
- /* DMA object for PRAMIN BAR */
- ret = nouveau_gpuobj_new(dev, chan, 6*4, 16, 0, &priv->pramin_bar);
- if (ret)
- return ret;
- nv_wo32(priv->pramin_bar, 0x00, 0x7fc00000);
- nv_wo32(priv->pramin_bar, 0x04, dev_priv->ramin_size - 1);
- nv_wo32(priv->pramin_bar, 0x08, 0x00000000);
- nv_wo32(priv->pramin_bar, 0x0c, 0x00000000);
- nv_wo32(priv->pramin_bar, 0x10, 0x00000000);
- nv_wo32(priv->pramin_bar, 0x14, 0x00000000);
-
- /* map channel into PRAMIN, gpuobj didn't do it for us */
- ret = nv50_instmem_bind(dev, chan->ramin);
- if (ret)
- return ret;
-
- /* poke regs... */
- nv_wr32(dev, 0x001704, 0x00000000 | (chan->ramin->vinst >> 12));
- nv_wr32(dev, 0x001704, 0x40000000 | (chan->ramin->vinst >> 12));
- nv_wr32(dev, 0x00170c, 0x80000000 | (priv->pramin_bar->cinst >> 4));
-
- tmp = nv_ri32(dev, 0);
- nv_wi32(dev, 0, ~tmp);
- if (nv_ri32(dev, 0) != ~tmp) {
- NV_ERROR(dev, "PRAMIN readback failed\n");
- return -EIO;
- }
- nv_wi32(dev, 0, tmp);
-
- dev_priv->ramin_available = true;
-
- /* Determine VM layout */
- dev_priv->vm_gart_base = roundup(NV50_VM_BLOCK, NV50_VM_BLOCK);
- dev_priv->vm_gart_size = NV50_VM_BLOCK;
-
- dev_priv->vm_vram_base = dev_priv->vm_gart_base + dev_priv->vm_gart_size;
- dev_priv->vm_vram_size = dev_priv->vram_size;
- if (dev_priv->vm_vram_size > NV50_VM_MAX_VRAM)
- dev_priv->vm_vram_size = NV50_VM_MAX_VRAM;
- dev_priv->vm_vram_size = roundup(dev_priv->vm_vram_size, NV50_VM_BLOCK);
- dev_priv->vm_vram_pt_nr = dev_priv->vm_vram_size / NV50_VM_BLOCK;
-
- dev_priv->vm_end = dev_priv->vm_vram_base + dev_priv->vm_vram_size;
-
- NV_DEBUG(dev, "NV50VM: GART 0x%016llx-0x%016llx\n",
- dev_priv->vm_gart_base,
- dev_priv->vm_gart_base + dev_priv->vm_gart_size - 1);
- NV_DEBUG(dev, "NV50VM: VRAM 0x%016llx-0x%016llx\n",
- dev_priv->vm_vram_base,
- dev_priv->vm_vram_base + dev_priv->vm_vram_size - 1);
-
- /* VRAM page table(s), mapped into VM at +1GiB */
- for (i = 0; i < dev_priv->vm_vram_pt_nr; i++) {
- ret = nouveau_gpuobj_new(dev, NULL, NV50_VM_BLOCK / 0x10000 * 8,
- 0, NVOBJ_FLAG_ZERO_ALLOC,
- &chan->vm_vram_pt[i]);
- if (ret) {
- NV_ERROR(dev, "Error creating VRAM PGT: %d\n", ret);
- dev_priv->vm_vram_pt_nr = i;
- return ret;
- }
- dev_priv->vm_vram_pt[i] = chan->vm_vram_pt[i];
-
- nv_wo32(chan->vm_pd, 0x10 + (i*8),
- chan->vm_vram_pt[i]->vinst | 0x61);
- nv_wo32(chan->vm_pd, 0x14 + (i*8), 0);
- }
-
- /* DMA object for FB BAR */
- ret = nouveau_gpuobj_new(dev, chan, 6*4, 16, 0, &priv->fb_bar);
- if (ret)
- return ret;
- nv_wo32(priv->fb_bar, 0x00, 0x7fc00000);
- nv_wo32(priv->fb_bar, 0x04, 0x40000000 +
- pci_resource_len(dev->pdev, 1) - 1);
- nv_wo32(priv->fb_bar, 0x08, 0x40000000);
- nv_wo32(priv->fb_bar, 0x0c, 0x00000000);
- nv_wo32(priv->fb_bar, 0x10, 0x00000000);
- nv_wo32(priv->fb_bar, 0x14, 0x00000000);
-
- dev_priv->engine.instmem.flush(dev);
-
- nv_wr32(dev, 0x001708, 0x80000000 | (priv->fb_bar->cinst >> 4));
- for (i = 0; i < 8; i++)
- nv_wr32(dev, 0x1900 + (i*4), 0);
-
- return 0;
-}
-
-void
-nv50_instmem_takedown(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nv50_instmem_priv *priv = dev_priv->engine.instmem.priv;
- struct nouveau_channel *chan = dev_priv->fifos[0];
- int i;
-
- NV_DEBUG(dev, "\n");
-
- if (!priv)
- return;
-
- dev_priv->ramin_available = false;
-
- /* Restore state from before init */
- for (i = 0x1700; i <= 0x1710; i += 4)
- nv_wr32(dev, i, priv->save1700[(i - 0x1700) / 4]);
-
- nouveau_gpuobj_ref(NULL, &priv->fb_bar);
- nouveau_gpuobj_ref(NULL, &priv->pramin_bar);
- nouveau_gpuobj_ref(NULL, &priv->pramin_pt);
-
- /* Destroy dummy channel */
- if (chan) {
- for (i = 0; i < dev_priv->vm_vram_pt_nr; i++)
- nouveau_gpuobj_ref(NULL, &chan->vm_vram_pt[i]);
- dev_priv->vm_vram_pt_nr = 0;
-
- nv50_channel_del(&dev_priv->fifos[0]);
- dev_priv->fifos[127] = NULL;
- }
-
- dev_priv->engine.instmem.priv = NULL;
- kfree(priv);
-}
-
-int
-nv50_instmem_suspend(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nouveau_channel *chan = dev_priv->fifos[0];
- struct nouveau_gpuobj *ramin = chan->ramin;
- int i;
-
- ramin->im_backing_suspend = vmalloc(ramin->size);
- if (!ramin->im_backing_suspend)
- return -ENOMEM;
-
- for (i = 0; i < ramin->size; i += 4)
- ramin->im_backing_suspend[i/4] = nv_ri32(dev, i);
- return 0;
-}
-
-void
-nv50_instmem_resume(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nv50_instmem_priv *priv = dev_priv->engine.instmem.priv;
- struct nouveau_channel *chan = dev_priv->fifos[0];
- struct nouveau_gpuobj *ramin = chan->ramin;
- int i;
-
- dev_priv->ramin_available = false;
- dev_priv->ramin_base = ~0;
- for (i = 0; i < ramin->size; i += 4)
- nv_wo32(ramin, i, ramin->im_backing_suspend[i/4]);
- dev_priv->ramin_available = true;
- vfree(ramin->im_backing_suspend);
- ramin->im_backing_suspend = NULL;
-
- /* Poke the relevant regs, and pray it works :) */
- nv_wr32(dev, NV50_PUNK_BAR_CFG_BASE, (chan->ramin->vinst >> 12));
- nv_wr32(dev, NV50_PUNK_UNK1710, 0);
- nv_wr32(dev, NV50_PUNK_BAR_CFG_BASE, (chan->ramin->vinst >> 12) |
- NV50_PUNK_BAR_CFG_BASE_VALID);
- nv_wr32(dev, NV50_PUNK_BAR1_CTXDMA, (priv->fb_bar->cinst >> 4) |
- NV50_PUNK_BAR1_CTXDMA_VALID);
- nv_wr32(dev, NV50_PUNK_BAR3_CTXDMA, (priv->pramin_bar->cinst >> 4) |
- NV50_PUNK_BAR3_CTXDMA_VALID);
-
- for (i = 0; i < 8; i++)
- nv_wr32(dev, 0x1900 + (i*4), 0);
-}
-
-int
-nv50_instmem_populate(struct drm_device *dev, struct nouveau_gpuobj *gpuobj,
- uint32_t *sz)
-{
- int ret;
-
- if (gpuobj->im_backing)
- return -EINVAL;
-
- *sz = ALIGN(*sz, 4096);
- if (*sz == 0)
- return -EINVAL;
-
- ret = nouveau_bo_new(dev, NULL, *sz, 0, TTM_PL_FLAG_VRAM, 0, 0x0000,
- true, false, &gpuobj->im_backing);
- if (ret) {
- NV_ERROR(dev, "error getting PRAMIN backing pages: %d\n", ret);
- return ret;
- }
-
- ret = nouveau_bo_pin(gpuobj->im_backing, TTM_PL_FLAG_VRAM);
- if (ret) {
- NV_ERROR(dev, "error pinning PRAMIN backing VRAM: %d\n", ret);
- nouveau_bo_ref(NULL, &gpuobj->im_backing);
- return ret;
- }
-
- gpuobj->vinst = gpuobj->im_backing->bo.mem.start << PAGE_SHIFT;
- return 0;
-}
-
-void
-nv50_instmem_clear(struct drm_device *dev, struct nouveau_gpuobj *gpuobj)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
-
- if (gpuobj && gpuobj->im_backing) {
- if (gpuobj->im_bound)
- dev_priv->engine.instmem.unbind(dev, gpuobj);
- nouveau_bo_unpin(gpuobj->im_backing);
- nouveau_bo_ref(NULL, &gpuobj->im_backing);
- gpuobj->im_backing = NULL;
- }
-}
-
-int
-nv50_instmem_bind(struct drm_device *dev, struct nouveau_gpuobj *gpuobj)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nv50_instmem_priv *priv = dev_priv->engine.instmem.priv;
- struct nouveau_gpuobj *pramin_pt = priv->pramin_pt;
- uint32_t pte, pte_end;
- uint64_t vram;
-
- if (!gpuobj->im_backing || !gpuobj->im_pramin || gpuobj->im_bound)
- return -EINVAL;
-
- NV_DEBUG(dev, "st=0x%lx sz=0x%lx\n",
- gpuobj->im_pramin->start, gpuobj->im_pramin->size);
-
- pte = (gpuobj->im_pramin->start >> 12) << 1;
- pte_end = ((gpuobj->im_pramin->size >> 12) << 1) + pte;
- vram = gpuobj->vinst;
-
- NV_DEBUG(dev, "pramin=0x%lx, pte=%d, pte_end=%d\n",
- gpuobj->im_pramin->start, pte, pte_end);
- NV_DEBUG(dev, "first vram page: 0x%010llx\n", gpuobj->vinst);
-
- vram |= 1;
- if (dev_priv->vram_sys_base) {
- vram += dev_priv->vram_sys_base;
- vram |= 0x30;
- }
-
- while (pte < pte_end) {
- nv_wo32(pramin_pt, (pte * 4) + 0, lower_32_bits(vram));
- nv_wo32(pramin_pt, (pte * 4) + 4, upper_32_bits(vram));
- vram += 0x1000;
- pte += 2;
- }
- dev_priv->engine.instmem.flush(dev);
-
- nv50_vm_flush(dev, 6);
-
- gpuobj->im_bound = 1;
- return 0;
-}
-
-int
-nv50_instmem_unbind(struct drm_device *dev, struct nouveau_gpuobj *gpuobj)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nv50_instmem_priv *priv = dev_priv->engine.instmem.priv;
- uint32_t pte, pte_end;
-
- if (gpuobj->im_bound == 0)
- return -EINVAL;
-
- /* can happen during late takedown */
- if (unlikely(!dev_priv->ramin_available))
- return 0;
-
- pte = (gpuobj->im_pramin->start >> 12) << 1;
- pte_end = ((gpuobj->im_pramin->size >> 12) << 1) + pte;
-
- while (pte < pte_end) {
- nv_wo32(priv->pramin_pt, (pte * 4) + 0, 0x00000000);
- nv_wo32(priv->pramin_pt, (pte * 4) + 4, 0x00000000);
- pte += 2;
- }
- dev_priv->engine.instmem.flush(dev);
-
- gpuobj->im_bound = 0;
- return 0;
-}
-
-void
-nv50_instmem_flush(struct drm_device *dev)
-{
- nv_wr32(dev, 0x00330c, 0x00000001);
- if (!nv_wait(dev, 0x00330c, 0x00000002, 0x00000000))
- NV_ERROR(dev, "PRAMIN flush timeout\n");
-}
-
-void
-nv84_instmem_flush(struct drm_device *dev)
-{
- nv_wr32(dev, 0x070000, 0x00000001);
- if (!nv_wait(dev, 0x070000, 0x00000002, 0x00000000))
- NV_ERROR(dev, "PRAMIN flush timeout\n");
-}
-
-void
-nv50_vm_flush(struct drm_device *dev, int engine)
-{
- nv_wr32(dev, 0x100c80, (engine << 16) | 1);
- if (!nv_wait(dev, 0x100c80, 0x00000001, 0x00000000))
- NV_ERROR(dev, "vm flush timeout: engine %d\n", engine);
-}
-
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